Issue #18200: Update the stdlib (except tests) to use
ModuleNotFoundError.
diff --git a/Lib/xml/etree/ElementTree.py b/Lib/xml/etree/ElementTree.py
index edf2581..9c129d8 100644
--- a/Lib/xml/etree/ElementTree.py
+++ b/Lib/xml/etree/ElementTree.py
@@ -1439,13 +1439,13 @@
     def __init__(self, html=0, target=None, encoding=None):
         try:
             from xml.parsers import expat
-        except ImportError:
+        except ModuleNotFoundError:
             try:
                 import pyexpat as expat
-            except ImportError:
-                raise ImportError(
-                    "No module named expat; use SimpleXMLTreeBuilder instead"
-                    )
+            except ModuleNotFoundError:
+                raise ModuleNotFoundError(
+                    "No module named expat; use SimpleXMLTreeBuilder instead",
+                    name='expat')
         parser = expat.ParserCreate(encoding, "}")
         if target is None:
             target = TreeBuilder()